Adjustable regulable knife



Dec. s, 1927. 1,651,661

' G. BURKE ET AL ADJUSTABLE BEGULABLE KNIFE Filed Feb, s, '1927" gwvm Hoz GuLZZermo Bur/fe mi Mam/e2 GOGf lll i Y 1nandle partiallyisectioned, and 30 Patented Een. G, E92?.

f partenariats 'narrati isaiasi GUrLLnn-Mo 'BURKE vAnn MANUEL ACOSTA, or Bonnes Arens,A aneurisma.

ADJUSTABLE -nneULABLnnnrrni f` Applicatioirled February 3, M527. Serial N. 165,654.`

Our present linvention relates to certain improvements in knives its main object be` ing to providel an adjustable and regulable knife for cutting leather, soleywood or any circular at one end and'pointed attlie other, f

said blade being so fixed to a handle that its angular position relative thereto may b e varied and regulated and also its longitudi nal position with respect to handle and to its longitudinal axis inay also be adjusted. The invention has further objects in view which Tvill be clearly seen from the following'description and which are particularly set forth in the appended claiming clauses.

ln order that our present invention may be clearly understood and easily carried into practice, a preferred embodiment thereof has been shown vin the -appended dra Tings, wherein, Y s

Figure 1 is a plan vieiv of the knife according to our present invention, Figure 2 is a side view thereof with the Figure 8 is a top View of theblade. ,y

Similar characters of reference denote saine or like parts throughout thesaid draw ings. Y Y

ln the en'ibodi'n'ient shown l is handle o any material and suitable size said haiidl having a substantially rectangular slot near one of its ends. Normally 'tliei'etoltlie hand-le has also a slit 3 inwhich the blade 8 is lodged, 'said blade having a sharpened .edge extending around its entire periphery and having any suitable conformation, as for instance, rounded at one end and pointedat the other end as shown in Fig. 3. rlhe end of the handle corresponding to the eligated` slot Zis covered With metal plates and 5, according to the nature of the material used 4for said handle, said plates beingy also Vprovided with corresponding rectangular slots G aii'd 7. The blade 8 has a central longitudinal slot 9 the Width of which is somewhat less than the Width of the slots 6 and 7. 10 is a bolt having a polygonally side sectioned or surfaced portion under its head as shown in 11, said portion Vadjusting itselfin the slot 6 which ensures the iinniobility of the appended claiming clauses.y v

the boltfineight different angular'positions; Below said'portion the bolthas 'a square side sectional orsurfacedprtionf12 which passes throughan'd corresponds to the slot9 ,in the bla-de, which avoids all angular movements of said blade vWith respectto the bolt. In'

Y this 'foi-init is obvious that said bolt vmay slid-elongitudinally in the slot 6 `whereby a longitudinal displacement of 'the' blade With respect to the.. handle-is obtained. Further, by slightly raising said bolt bylallovving the square portion thereof tobein contact' With vthe slot 9, it is possible to make angular dis-'I placements of theblade With respectto l,the

rlongitiidinal anis of the handle Vand further after the blade has been placedin the angu- 1 lar position required, it is possiblef'to dis-Y plac-e'said blade alongits ownlongitudinal axis. The ,bolt has preferably a rounded portion 13 and its end is screw threaded as shown in la., A nut l5 of any suitable-forni may be fixed tothe said bolt'iii order to tighten` the parts togethen Said nut mayhave a ksinall handle 16 as shown or have any other suitable devicein order to' tighten and,

untighten it.

The Working is obvious and does not quire any lfurther explanation.

v It is obvious that inany constructional and`- other changesimay be introduced kWithout departing' from thescope of our presentv inventionwhich has been clearly'set ,fr )rthin'v Having-now fullyv described yand fsisting of a blade sharpened all around its edge and circular at one end and' pointed at the other end,'said knife being provided with ascerL `tained the nature of our present invention(4 and inlwhat manner the saineis to be 'car-J ried into'practice, We ydeclare that what We claim is: `A i a central longitudinal slot,`and a handle having a central longitudinal slot in'Whch the blade is lodgedgand a rectangular slot nor?k Ainal to the said longitudinal-slot.Which per-Vv mits the insertion and securing of a bolt have ing adjacent to its head a polygonal portion which adjusts itself in the slot ofthe handle .and allows adjustment of said bolt indiffer-l ent angular positions, and a square sectioned portion which passes throughthe slot in the blade andallows .the l longitudinal `displacement of the blade with respect to said bolt in any Aangular position thereoffandl of they Vl lo 10UAv bolt with respect to the handle, and a retaining nut "for holding and pressing all parts together.

2. A knife for the purposes set forth, conlsistingof a blade sharpenedall around its Y edge and circular at one end and pointed at Y the other end, said knife being provided ywith a central longitudinal slot, and a handle having a` central longitudinal vslot in `which' the blade is lodged and a rectangular slot i normal yto the said. longitudinal slot which permits Vthe insertion and securing of a bolt having adjacent to its head a portion having at least twoside surfaces which adjusts itself in the slot of the handle andk allows adjustinent of said bolt in different angular positions, and a sectioned portion 4having at least two sidey surfaces which passes through the slot in the bladeand allows the longitudinal displacement of the blade with respect to said bolt in angular, positions thereof tures.

GUILLERMO BURKE.' MANUEL ACOSTA. 

